Korg 800DV User manual

SVTlTHiSIZER
SERVICE MANUAL
f — Contents —
PART LIST (I ~5)
BLOCK DIAGRAM
SBC-049 CIRCUIT BOARD
SBC-050 CIRCUIT BOARD
SBC-05 I CIRCUIT BOARD
POWER SUPLLY CIRCUIT BOAflD
OVERALL CIRCUIT DIAGRAM
KEIO ELECTRONIC LAB., CORP.
TOKYO, JAPAN
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(5-2)
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PART LIST
(5-1)
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J0
0
(5 -3)
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(5-4)
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(5-5)
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vco
VCF
Power Supply
UPPER
1 f
Terminal
Oscillator
Bender
Vibrato
Porta
mento
Wave Form
changer
Pink Noise
Mixer
High Pass
Filter
i
Low Pass
Filter
r
44 Key Board
LOWER
Trigger
1
Repeat Mode
i
Oscillator
Key Transpose
'
Pdrta-
mento
Vibrato
Bender
Ring Modulator
White
Noise
Wave Form
changer
Mixer
Expand
Envelope
Generator
Envelope
Generator
Expand
VCA
High Pass
Filter
Low pass
Filter
■> Electric Control
■* Signal
Out put
VCA
\
VCO
VCF
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SBC-049 CIRCUIT BOARD
y
Buffer
Trigger ■
RING MODULATOR
VOLUME BALANCE
9COK
IOK
NOISE
VOLUME
BOOK
TUNING
IMPEDANCE
IOK
137
SBC-049
Ring Modulator
6ND
T«ntal
Carbon film
2SC<44(R) Sel
2SA6O8WJ
2ft K 30 Co*n
Aluminum
C J Polyester
Diode
Jumper
Empire Tube
SOOK
Semifixed Resistor
Pink/White Noise
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SBC-050 CIRCUIT BOARD
0
Envelope Generator
SBC-050
H.P.F.
BRIGHT
CUT OFF
2.2K
BALANCE
5K
LP-0U1
50K
soon
5OK
500A
VCA
KEIO
IC
TS 200042
60
HP-OUT ft
73 74 GNO -VfcE -fVbC
TanUlum
a
t
o
Carbonfilm
^.U/ ±5%
Carbonlttm
Polyester
Diode
Jumper
Empire Tube
Semifixed Resistor
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SBC-051 CIRCUIT BOARD
Chorus
O.S.C.
SBC-051
8 V / 10 V\f)l2 V n B «
Chorus
ISI35S
T«nttlum
Matalfibn
0'
nfilm
CtrbonfBm
Jumper
Empire Tube
Aluminum
Polystyrene
{ ) Polyester
Semifixed
Resistor
Trig Detect
Bender
0
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